tolong di bantu ya butuh sekarang dan pake cara makasih

9^1/2 + 8^-2/3 - 4^-1/2
= (3^2)^1/2 + (2^3)^-2/3 - (2^2)^-1/2
= 3^1 + 2^-2 - 2^-1
= 3 + 1/2^2 - 1/2
= 3 + 1/4 - 1/2
= 3 1/4 - 2/4
= 2 5/4 - 2/4
= 2 3/4